Bifunctional One-Component Catalysts for the Addition of Carbon Dioxide to Epoxides. -An efficient synthesis of cyclic carbonates including the naturally occurring carbonate (VII) is presented by using the iodide organocatalyst. -(BUETTNER, H.; LAU, K.; SPANNENBERG, A.; WERNER*, T.; ChemCatChem 7 (2015) 3, 459-467, http://dx.doi.org/10.1002/cctc.201402816 ; Leibniz-Inst. Katal., Univ. Rostock, D-18059 Rostock, Germany; Eng.) -Mais 25-161

The cyclic carbonates are generally obtained in high yields as pure products after simple filtration over silica gel.

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Novel bifunctional phosphonium salts are synthesized and employed for the first times as organocatalysts for the atom efficient synthesis of cyclic carbonates from epoxides and CO2.